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Brevets

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Brevet citant Date de dépôt Date de délivrance Cessionnaire d'origine Titre
US393097927 juin 19746 janv. 1976Imperial Chemical Industries LimitedPorous diaphragms
US394091627 juin 19742 mars 1976E. I. Du Pont de Nemours and CompanyKnitted or woven ion exchange fabric containing low denier filaments
US394591013 juin 197423 mars 1976Solvay & CieDiaphragm for an electrolysis cell
US39545791 nov. 19734 mai 1976Hooker Chemicals & Plastics CorporationElectrolytic method for the simultaneous manufacture of concentrated and dilute aqueous hydroxide solutions
US396928517 déc. 197313 juil. 1976E. I. Du Pont de Nemours and CompanyHeat-treated fluorocarbon sulfonylamine cation permselectivity
US397654926 févr. 197324 août 1976Hooker Chemicals & Plastics CorporationElectrolysis method
US40060675 mars 19731 févr. 1977Oxidation-reduction process
US402540521 oct. 197124 mai 1977Diamond Shamrock CorporationElectrolytic production of high purity alkali metal hydroxide
US403671424 janv. 197519 juil. 1977E. I. Du Pont de Nemours and Company, Inc.Electrolytic cells and processes
US40382134 mars 197626 juil. 1977Shell Oil CompanyHydrocarbon conversion process using a supported perfluorinated polymer catalyst
US405352221 mai 197611 oct. 1977Shell Oil CompanyPreparation of bisphenols
US405547524 févr. 197625 oct. 1977Olin CorporationMethod for operating electrolytic diaphragm cells
US406047314 nov. 197529 nov. 1977Oronzio de Nora Impianti Elettrochimici S.p.A.Novel copolymers and diaphragms made therefrom
US40897594 oct. 197616 mai 1978BASF Wyandotte CorporationMethod for improving selectivity of membranes used in chlor-alkali cells
US410005029 nov. 197311 juil. 1978Hooker Chemicals & Plastics Corp.Coating metal anodes to decrease consumption rates
US410700511 nov. 197615 août 1978Hooker Chemicals & Plastics Corporation
RAI Research Corporation
Process for electrolysing sodium chloride or hydrochloric acid, an and electrolytic cell, employing trifluorostyrene sulfonic acid membrane
US41102651 mars 197729 août 1978Ionics Inc.Ion exchange membranes based upon polyphenylene sulfide
US412090330 mars 197717 oct. 1978E. I. Du Pont de Nemours and CompanyMethod for preparing poly(tetramethylene ether) glycol
US41395679 janv. 197813 févr. 1979E. I. Du Pont de Nemours and CompanyMethod for preparing copolyether glycols
US415378626 mai 19788 mai 1979E. I. Du Pont de Nemours and CompanyMethod for preparing ester end-capped copolyether glycols
US41652488 déc. 197721 août 1979PPG Industries, Inc.Method of joining fluorocarbon membrane sheets with quaternary ammonium compounds
US41806393 août 197725 déc. 1979Montedison S.p.A.Fluorosulphonyl oxafluoroalkanes, fluorosulphonyl olefines, _their copolymers and processes for preparation
US41851429 août 197822 janv. 1980Diamond Shamrock CorporationOxygen electrode rejuvenation methods
US418830810 mai 197812 févr. 1980Varen TechnologyConversion of pendant sulfonate groups to sulfonic acid groups on perfluorvinylether-tetrafluoroethylene copolymer catalysts
US419272516 févr. 197711 mars 1980Diamond Shamrock CorporationElectrolytic production of high purity alkali metal hydroxide
US427522816 mai 197923 juin 1981Rhone-Poulenc IndustriesCatalytic preparation of ethyl acetate
US428109222 oct. 197928 juil. 1981E. I. Du Pont de Nemours and CompanyVulcanizable fluorinated copolymers
US428579518 avr. 197525 août 1981Hooker Chemicals & Plastics Corp.Electrolysis apparatus
US428991823 juil. 198015 sept. 1981Nippon Petrochemical Company, LimitedAralkylation
US429719416 févr. 197727 oct. 1981Diamond Shamrock CorporationElectrolytic production of high purity alkali metal hydroxide
US429999621 mars 198010 nov. 1981Phillips Petroleum Co.Alkyl aryl ether production
US430355130 mai 19801 déc. 1981Varen TechnologySupported catalyst
US433065411 juin 198018 mai 1982The Dow Chemical CompanyNovel polymers having acid functionality
US433713711 juin 198029 juin 1982The Dow Chemical CompanyComposite ion exchange membranes
US433721111 juin 198029 juin 1982The Dow Chemical CompanyFluorocarbon ethers having substituted halogen site(s) and process to prepare
US43483108 août 19807 sept. 1982E. I. Du Pont de Nemours and CompanySolutions of sulfonyl fluoride compounds and fluoropolymers
US435631815 déc. 198026 oct. 1982E. I. Du Pont de Nemours and CompanyToluic acid
US435721810 déc. 19802 nov. 1982Asahi Kasei Kogyo Kabushiki KaishaCation exchange membrane and use thereof in the electrolysis of sodium chloride
US435841211 juin 19809 nov. 1982The Dow Chemical CompanyPreparation of vinyl ethers
US435854511 juin 19809 nov. 1982The Dow Chemical CompanySulfonic acid electrolytic cell having flourinated polymer membrane with hydration product less than 22,000
US438513015 déc. 198024 mai 1983ICI Australia LimitedIon exchange resins
US439072014 oct. 198128 juin 1983E. I. Du Pont de Nemours and CompanyAlkyl-.omega.-fluoroformyl ester and process
US44017112 nov. 198130 août 1983E. I. Du Pont de Nemours and CompanyCation exchange membrane with high equivalent weight component
US440940328 sept. 198111 oct. 1983Varen TechnologyOxyalkylation process
US441040426 juin 198118 oct. 1983Diamond Shamrock CorporationMembrane cell at increased caustic concentration
US44142803 déc. 19818 nov. 1983E. I. Du Pont de Nemours and CompanyMembranes and composites from fluoropolymer solutions
US441680119 août 198222 nov. 1983E. I. Du Pont de Nemours & Co.Toluic acid
US44330821 mai 198121 févr. 1984E. I. Du Pont de Nemours and CompanyProcess for making liquid composition of perfluorinated ion exchange polymer, and product thereof
US443411626 juin 198128 févr. 1984Diamond Shamrock CorporationMethod for making a porous fluorinated polymer structure
US44462693 mars 19821 mai 1984E. I. Du Pont de Nemours and CompanySolvents of carboxyl ester compounds and fluoropolymers
US445399116 sept. 198212 juin 1984E. I. Du Pont de Nemours and CompanyProcess for making articles coated with a liquid composition of perfluorinated ion exchange resin
US446553313 janv. 198314 août 1984ELTECH Systems LimitedMethod for making polymer bonded electrodes
US447088911 juin 198011 sept. 1984The Dow Chemical CompanyElectrolytic cell having an improved ion exchange membrane and process for operating
US44879346 juin 198011 déc. 1984Hoechst-Roussel Pharmaceuticals Inc.Method of preparing poly-substituted acylbenzenes
US450468519 août 198012 mars 1985Varen TechnologyOxyalkylation process
US451598911 juin 19807 mai 1985The Dow Chemical CompanyPreparation decarboxylation and polymerization of novel acid flourides and resulting monomers
US455411230 avr. 198119 nov. 1985The Dow Chemical CompanyMethod for the preparation of vinyl compounds
US459143913 août 198527 mai 1986E. I. Du Pont de Nemours and CompanyIon exchange process and apparatus
US461076231 mai 19859 sept. 1986The Dow Chemical CompanyMethod for forming polymer films having bubble release surfaces
US465055131 mai 198517 mars 1987The Dow Chemical CompanySupported ion exchange membrane films
US465071131 mai 198517 mars 1987The Dow Chemical CompanyMethod for sizing polytetrafluoroethylene fabrics
US468304113 juil. 198228 juil. 1987Asahi Kasei Kogyo Kabushiki KaishaProcess for electrolysis of sodium chloride
US469824320 juin 19866 oct. 1987The Dow Chemical CompanyMethod for sizing and hydrolyzing polytetrafluoroethylene fabrics, fibers, yarns, or threads
US472155917 oct. 198626 janv. 1988Boron, aluminum and gallium perfluoro alkanesulfonate and resinsulfonate catalysts
US473126326 sept. 198615 mars 1988The Dow Chemical CompanyMethod for the preparation of ionomer films
US473874119 déc. 198619 avr. 1988The Dow Chemical CompanyMethod for forming an improved membrane/electrode combination having interconnected roadways of catalytically active particles
US475237019 déc. 198621 juin 1988The Dow Chemical CompanySupported membrane/electrode structure combination wherein catalytically active particles are coated onto the membrane
US477872320 juin 198618 oct. 1988The Dow Chemical CompanyMethod for sizing polytetrafluoroethylene fibers, yarn, or threads
US478488231 mai 198515 nov. 1988The Dow Chemical CompanyMethod for forming composite polymer films
US47849009 mai 198615 nov. 1988University of BathMethod for sizing polytretrafluoroethylene fabrics
US48047275 mai 198714 févr. 1989The Dow Chemical CompanyProcess to produce novel fluorocarbon vinyl ethers and resulting polymers
US483492225 nov. 198530 mai 1989The Dow Chemical CompanyProcess to produce novel fluorocarbon vinyl ethers and resulting polymers
US485974522 déc. 198722 août 1989The Dow Chemical CompanyStratified fibrous fluoropolymer compositions and process for forming such fluoropolymers
US487170317 déc. 19873 oct. 1989The Dow Chemical CompanyProcess for preparation of an electrocatalyst
US488957719 déc. 198626 déc. 1989The Dow Chemical CompanyMethod for making an improved supported membrane/electrode structure combination wherein catalytically active particles are coated onto the membrane
US491602026 févr. 198810 avr. 1990The Dow Chemical CompanyReactive bonding method
US49405258 mai 198710 juil. 1990The Dow Chemical CompanyLow equivalent weight sulfonic fluoropolymers
US500125711 mai 198719 mars 1991E. I. Du Pont de Nemours and CompanyPreparation of 4-pentenoic acid, amide or esters by isomerization
US502336219 juin 198711 juin 1991E. I. Du Pont de Nemours and CompanyAlkyl perfluoro(2-methyl-5-oxo-3-oxahexanoate)
US503938927 juil. 198913 août 1991The Dow Chemical CompanyMembrane/electrode combination having interconnected roadways of catalytically active particles
US50699746 févr. 19893 déc. 1991Monsanto CompanyMetals coated with protective coatings of annealed perfluorinated cation-exchange polymers and method for making same
US508414431 juil. 199028 janv. 1992Physical Sciences Inc.High utilization supported catalytic metal-containing gas-diffusion electrode, process for making it, and cells utilizing it
US50949952 août 198910 mars 1992E. I. Du Pont de Nemours and CompanySupported perfluorinated ion-exchange polymers
US51050472 août 198914 avr. 1992E. I. Du Pont de Nemours and CompanyCatalysis using blends of perfluorinated ion-exchange polymers with perfluorinated diluents
US511038511 janv. 19885 mai 1992The Dow Chemical CompanyMethod for forming polymer composite films using a removable substrate
US511077823 oct. 19875 mai 1992Boron aluminum and gallium perfluoro alkanesulfonate and resinsulfonate catalysts
US51129832 juil. 199012 mai 1992Olin CorporationProcess for producing 1,2,4-triazol-5-one using organic sulfonic acids and polymers thereof as a catalyst
US511451511 janv. 198819 mai 1992The Dow Chemical CompanyMethod for forming polymer composite films using removable substrates
US512429915 nov. 199123 juin 1992E. I. Du Pont de Nemours and CompanyCatalysis using blends of perfluorinated ion-exchange polymers with perfluorinated diluents
US512801426 mars 19917 juil. 1992E. I. Du Pont de Nemours and CompanyIrradiation of cation exchange membranes
US52331026 nov. 19913 août 1993E. I. du Pont de Nemours and CompanyOlefin hydration
US52521934 nov. 199112 oct. 1993E. I. Du Pont de Nemours and CompanyControlled roughening of reinforced cation exchange membrane
US526409330 avr. 199223 nov. 1993E. I. Du Pont de Nemours and CompanyIrradiation of cation exchange membranes to increse current efficiency and reduce power consumption
US526450825 juin 199323 nov. 1993The Dow Chemical CompanyPolymers of haloperfluoro and perfluoro ethers
US528168014 janv. 199325 janv. 1994E. I. Du Pont de Nemours and CompanyPolymerization of fluorinated copolymers
US528838415 avr. 199322 févr. 1994E. I. Du Pont de Nemours and CompanyWetting of diaphragms
US531503319 avr. 199324 mai 1994E. I. Du Pont de Nemours and CompanyEster hydrolysis
US533062616 févr. 199319 juil. 1994E. I. du Pont de Nemours and CompanyIrradiation of polymeric ion exchange membranes to increase water absorption
US539385217 nov. 199328 févr. 1995The Dow Chemical CompanyPolymers of haloperfluoro and perfluoro ethers
US542241121 sept. 19936 juin 1995Ballard Power Systems Inc.Trifluorostyrene and substituted trifluorostyrene copolymeric compositions and ion-exchange membranes formed therefrom
US543021228 févr. 19944 juil. 1995E. I. Du Pont de Nemours and CompanyOlefin oligomerization
US543386117 sept. 199318 juil. 1995The Dow Chemical CompanyPermanent deformation and use of sulfonated halopolymer articles
US544982518 janv. 199412 sept. 1995The Dow Chemical CompanyPreparation of haloperfluoro and perfluoro ethers
US545867425 juil. 199417 oct. 1995E. I. Du Pont de Nemours and CompanyOrganic separation from HF
US549863916 mai 199512 mars 1996Ballard Power Systems Inc.Trifluorostyrene and substituted trifluorostyrene copolymeric ion-exchange membranes
US555701025 juin 199217 sept. 1996The Dow Chemical CompanyPreparation of a 2,3-dihaloperfluorocarbonyl halide
US559567622 déc. 199421 janv. 1997Imperial Chemical Industries PLCFluorinated polymers
US56021856 juin 199511 févr. 1997Ballard Power Systems Inc.Substituted trifluorostyrene compositions
US565410930 juin 19955 août 1997The Dow Chemical CompanyComposite fuel cell membranes
US568419220 déc. 19954 nov. 1997Ballard Power Systems, Inc.Substituted trifluorostyrene monomeric compositions
US569106625 juin 199625 nov. 1997Acushnet CompanyGolf ball comprising fluoropolymer and method of making same
US571650420 juin 199610 févr. 1998Asahi Glass Company Ltd.Cation exchange membrane for electrolysis and process for producing potassium hydroxide of high purity
US577348018 déc. 199630 juin 1998Ballard Power Systems Inc.Trifluorostyrene and substituted trifluorostyrene copolymeric compositions and ion-exchange membranes formed therefrom
US58828107 mars 199716 mars 1999The Dow ChemicalCompanyActive layer for membrane electrode assembly
US59000447 mai 19974 mai 1999E. I. du Pont de Nemours and CompanyOrganic separation from HF
US591958329 août 19976 juil. 1999E. I. du Pont de Nemours and CompanyMembranes containing inorganic fillers and membrane and electrode assemblies and electrochemical cells employing same
US596214014 nov. 19975 oct. 1999Acushnet CompanyGolf ball comprising fluoropolymer
US59810979 déc. 19979 nov. 1999E.I. du Pont de Nemours and CompanyMultiple layer membranes for fuel cells employing direct feed fuels
US59897424 oct. 199623 nov. 1999The Research Foundation of State University of New YorkBlend membranes based on sulfonated poly(phenylene oxide) for enhanced polymer electrochemical cells
US602509213 févr. 199815 févr. 2000E. I. du Pont de Nemours and CompanyFluorinated ionomers and their uses
US603380431 oct. 19977 mars 2000E. I. du Pont de Nemours and CompanyHighly conductive ion exchange polymer and process
US604295821 avr. 199828 mars 2000Johnson Matthey Public Limited CompanyComposite membranes
US610032416 avr. 19988 août 2000E. I. du Pont de Nemours and CompanyIonomers and ionically conductive compositions
US610341413 août 199815 août 2000The Research Foundation of State University of the New YorkBlend membranes based on sulfonated poly(phenylene oxide) for polymer electrochemical cells
US611033330 avr. 199829 août 2000E. I. du Pont de Nemours and Company
Donaldson & Co.
Composite membrane with highly crystalline porous support
US61404369 nov. 199931 oct. 2000E. I. du Pont de Nemours and CompanyFluorinated ionomers and their uses
US615042615 oct. 199721 nov. 2000E. I. du Pont de Nemours and CompanyCompositions containing particles of highly fluorinated ion exchange polymer
US617913213 mars 199830 janv. 2001Millipore CorporationSurface modified polymeric substrate and process
US620092426 janv. 200013 mars 2001E. I. du Pont de Nemours and CompanyPorous highly fluorinated acidic polymer catalyst
US62184601 juil. 199917 avr. 2001E. I. du Pont de Nemours and CompanyFibers flash-spun from fully halogenated polymers
US623175529 janv. 199915 mai 2001E. I. du Pont de Nemours and CompanyDesulfurization of petroleum products
US62684307 juin 200031 juil. 2001E. I. du Pont de Nemours and CompanyIonomers and ionically conductive compositions
US636569319 avr. 20002 avr. 2002DuPont Dow Elastomers, L.L.C.Fluoroalkanesulfonyl azide copolymers
US64035392 août 200011 juin 2002Ausimont S.p.A.Perfluoropolyether lubricant containing sulphonylfluoride groups
US641737913 déc. 20019 juil. 2002DuPont Dow Elastomers, L.L.C.Fluoroalkanesulfonyl azide ethylenic monomer
US64370119 juil. 200120 août 2002Ballard Power Systems Inc.(inconnu)
US646871225 févr. 200022 oct. 2002Massachusetts Institute of TechnologyResist materials for 157-nm lithography
US648585612 juin 200026 nov. 2002Johnson Matthey Public Limited CompanyNon-woven fiber webs
US649821621 nov. 200024 déc. 2002E. I. du Pont de Nemours and CompanyDyeable fluoropolymer fibers and films
US65520932 août 200022 avr. 2003E. I. du Pont de Nemours and CompanyCompositions containing particles of highly fluorinated ion exchange polymer
US658664020 juin 20021 juil. 2003E. I. du Pont de Nemours and CompanyDecomposition of organic hydroperoxides in the presence of a particulate catalyst containing highly fluorinated polymer having sulfonic acid groups and process for the manufacture of bisphenol A
US66208999 avr. 200116 sept. 2003E. I. du Pont de Nemours and CompanyPolymers, containing a fluorocyclobutyl ring and their preparation
US66209033 déc. 200216 sept. 2003E. I. du Pont de Nemours and CompanyDyeable fluoropolymer fibers and films
US662432817 déc. 200223 sept. 20033M Innovative Properties CompanyPreparation of perfluorinated vinyl ethers having a sulfonyl fluoride end-group
US666737710 mai 200123 déc. 2003E. I. du Pont de Nemours and CompanyPolyvinylidene fluoride ionomers containing pendant fluoroalkylsulfonyl imide or fluoroalkylsulfonyl methide groups
US667997912 déc. 200120 janv. 2004Ballard Power Systems Inc.Aqueous ionomeric gels and products and methods related thereto
US67135671 juil. 200230 mars 2004E. I. du Pont de Nemours and CompanyMethod for forming fluorinated ionomers
US67594771 mai 20026 juil. 2004E. I. du Pont de Nemours and CompanyMethod for preparing imides from sulfonyl fluorides
US68614896 déc. 20011 mars 2005Gore Enterprise Holdings, Inc.Low equivalent weight ionomer
US69087243 oct. 200221 juin 2005Daikin Industries, Ltd.Fluorine-containing polymer having acid-reactive group and chemically amplifying type photoresist composition prepared from same
US691685320 déc. 200212 juil. 2005E. I. du Pont de Nemours and CompanyCompositions containing particles of highly fluorinated ion exchange polymer
US693964017 sept. 20026 sept. 2005E. I. DuPont de Nemours and CompanyAnode electrocatalysts for coated substrates used in fuel cells
US696295928 août 20038 nov. 2005Hoku Scientific, Inc.Composite electrolyte with crosslinking agents
US700554523 mai 200328 févr. 2006Daikin Industries, Ltd.Process for producing fluorinated fluorosulfonylalkyl vinyl ether
US700897119 août 20037 mars 2006Hoku Scientific, Inc.Composite polymer electrolytes for proton exchange membrane fuel cells
US702242820 janv. 20054 avr. 2006Gore Enterprise Holdings, Inc.Low equivalent weight ionomer
US704140920 janv. 20059 mai 2006Gore Enterprise Holdings, Inc.Low equivalent weight ionomer
US705279216 mars 200130 mai 2006Johnson Matthey Public Limited CompanyProton conducting polymer membrane for electrochemical cell
US706016612 nov. 200313 juin 2006Ballard Power Systems Inc.Aqueous ionomeric gels and products and methods related thereto
US706073811 déc. 200313 juin 20063M Innovative Properties CompanyPolymer electrolytes crosslinked by ultraviolet radiation
US706075624 nov. 200313 juin 20063M Innovative Properties CompanyPolymer electrolyte with aromatic sulfone crosslinking
US707127130 oct. 20034 juil. 20063M Innovative Properties CompanyAqueous emulsion polymerization of functionalized fluoromonomers
US70712722 déc. 20024 juil. 2006Asahi Glass Company, LimitedMethod for preparing unsaturated compound by pyrolysis reaction
US70713461 mai 20034 juil. 2006E. I. du Pont de Nemours and CompanyPolymers, containing a fluorocyclobutyl ring and their preparation
US707484113 nov. 200311 juil. 2006Polymer electrolyte membranes crosslinked by nitrile trimerization
US709449013 mai 200322 août 2006Polyfuel, Inc.Ion conductive block copolymers
US70948516 déc. 200122 août 2006Gore Enterprise Holdings, Inc.Low equivalent weight ionomer
US71019389 juil. 20025 sept. 2006E. I. duPont de Nemours and CompanyMethod for forming fluorinated ionomers
US71126148 déc. 200326 sept. 20063M Innovative Properties CompanyCrosslinked polymer
US71289932 mai 200331 oct. 2006Johnson Matthey Public Limited CompanyComposite membrane
US715760010 mars 20042 janv. 2007Solvay Solexis S.p.A.Process for preparing (per) fluorohalogenethers
US716668511 janv. 200523 janv. 2007E. I. du Pont de Nemours and CompanyCompositions containing particles of highly fluorinated ion exchange polymer
US717306717 déc. 20036 févr. 20073M Innovative Properties CompanyPolymer electrolyte membranes crosslinked by direct fluorination
US717956028 juil. 200320 févr. 2007Samsung SDI Co., Ltd.Composite electrolyte membrane and fuel cell containing the same
US717984713 nov. 200320 févr. 20073M Innovative Properties CompanyPolymer electrolytes crosslinked by e-beam
US718301711 avr. 200527 févr. 2007Hoku Scientific, Inc. - A Delaware Corp.Composite polymer electrolytes for proton exchange membrane fuel cells
US719623528 juin 200227 mars 2007Asahi Kasei Kabushiki KaishaProcess for producing fluorinated vinyl ether
US720200113 mai 200310 avr. 2007Polyfuel, Inc.Sulfonated copolymer
US72527475 oct. 20067 août 2007Giner Electrochemical Systems, LLCComposite proton exchange membrane and method of manufacturing the same
US725920813 nov. 200321 août 20073M Innovative Properties CompanyReinforced polymer electrolyte membrane
US726516213 nov. 20034 sept. 20073M Innovative Properties CompanyBromine, chlorine or iodine functional polymer electrolytes crosslinked by e-beam
US727122923 avr. 200418 sept. 2007Asahi Glass Company, LimitedProcesses for producing a fluorosulfonyl group-containing compound and a compound led from the fluorosulfonyl group-containing compound
US729742928 avr. 200320 nov. 2007Gore Enterprise Holdings, Inc.Ionomer for use in fuel cells and method of making same
US730410119 juil. 20044 déc. 20073M Innovative Properties CompanyMethod of purifying a dispersion of ionic fluoropolymer
US730711314 mai 200111 déc. 2007E.I. du Pont de Nemours and CompanyFluorosulfonic acid organic polymers
US730711314 mai 200111 déc. 2007E.I. du Pont de Nemours and CompanyFluorosulfonic acid organic polymers
US732673625 juil. 20035 févr. 2008Giner Electrochemical Systems, LLCComposite proton exchange membrane and method of manufacturing the same
US73267373 janv. 20075 févr. 20083M Innovative Properties CompanyPolymer electrolyte membranes crosslinked by direct fluorination
US734500510 févr. 200418 mars 2008E.I. du Pont de Nemours and CompanyElectrocatalysts and processes for producing
US734808819 déc. 200225 mars 20083M Innovative Properties CompanyPolymer electrolyte membrane
US734838616 juin 200325 mars 2008Daikin Industries, Ltd.Process for producing fluorocopolymer, fluorocopolymer, and molded object
US735467912 nov. 20048 avr. 2008Polyfuel, Inc.Ion conductive random copolymers
US735799911 juil. 200315 avr. 2008Samsung SDI Co., Ltd.Nanocomposite electrolyte membrane and fuel cell employing the same
US74023516 juin 200322 juil. 2008E.I. du Pont de Nemours and CompanyCarboxylic acid-based ionomer fuel cells
US74050155 juil. 200229 juil. 2008Gore Enterprise Holdings, Inc.Ionomer for use in fuel cells and method of making same
US740502120 juin 200129 juil. 2008Johnson Matthey Public Limited CompanyWater-retaining anode structure for a fuel cell
US741102227 juil. 200712 août 20083M Innovative Properties CompanyReinforced polymer electrolyte membrane
US741680422 juil. 200426 août 2008E.I. du Pont de Nemours and CompanyProcess for making planar framed membrane electrode assembly arrays, and fuel cells containing the same
US742942827 juin 200530 sept. 2008Asahi Glass Company, LimitedPolymer electrolyte material, production method thereof and membrane electrode assembly for polymer electrolyte fuel cell
US743549822 mai 200614 oct. 20083M Innovative Properties CompanyPolymer electrolyte membranes crosslinked by nitrile trimerization
US745593410 mai 199925 nov. 2008Daikin Industries, Ltd.Fluorocopolymer material with sulfonic acid functional groups as a solid polyelectrolyte for use in fuel cells
US745631413 déc. 200725 nov. 2008E.I. du Pont de Nemours and CompanyPartially fluorinated ionic compounds
US748878814 nov. 200510 févr. 2009Asahi Glass Company, LimitedElectrolyte polymer for polymer electrolyte fuel cells, process for its production and membrane-electrode assembly
US751448129 janv. 20077 avr. 20093M Innovative Properties CompanyPolymer electrolytes crosslinked by e-beam
US753451615 oct. 200219 mai 2009E.I. du Pont de Nemours and CompanySolid polymer membrane for fuel cell with polyamine imbibed therein for reducing methanol permeability
US755716418 août 20047 juil. 2009E. I. du Pont de Nemours and CompanyMembranes of fluorinated ionomer blended with nonionomeric fluoropolymers for electrochemical cells
US75691583 oct. 20054 août 2009Air Products and Chemicals, Inc.Aqueous dispersions of polythienothiophenes with fluorinated ion exchange polymers as dopants
US757910221 juin 200625 août 2009Gore Enterprise Holdings, Inc.Low equivalent weight ionomer
US761530721 juin 200610 nov. 2009Gore Enterprise Holdings, Inc.Low equivalent weight ionomer
US770000828 juin 200620 avr. 2010E. I. du Pont de Nemours and CompanyBuffer compositions
US77050749 nov. 200727 avr. 2010E. I. du Pont de Nemours and CompanyAqueous polymerization of fluorinated monomer using polymerization agent comprising fluoropolyether acid or salt and short chain fluorosurfactant
US770966527 juil. 20074 mai 2010Asahi Glass Company, LimitedProcesses for producing a fluorosulfonyl group-containing compound and a compound LED from the fluorosulfonyl group-containing compound
US771402827 févr. 200811 mai 2010E.I. du Pont de Nemours and CompanyCompositions containing particles of highly fluorinated ion exchange polymer
US772278527 juin 200625 mai 2010E.I. du Pont de Nemours and Company
Dupont Displays Inc.
Electrically conductive polymer compositions
US772742127 juin 20061 juin 2010E. I. du Pont de Nemours and Company duPont Displays IncElectrically conductive polymer compositions
US774940728 juin 20066 juil. 2010E.I. du Pont de Nemours and CompanyHigh work function transparent conductors
US77857501 juil. 200531 août 2010SOLVAY (Societe Anonyme)Solid alkaline fuel cell comprising ion exchange membrane
US780706321 oct. 20045 oct. 2010Giner Electrochemical Systems, LLCSolid polymer electrolyte composite membrane comprising plasma etched porous support
US782923710 juin 20049 nov. 2010Sekisui Chemical Co., Ltd.Proton conductive film, method for producing the same, and fuel cell using same
US78342096 juin 200616 nov. 2010E.I. du Pont de Nemours and CompanyHydrofluoroalkanesulfonic acids from fluorovinyl ethers
US78470012 déc. 20097 déc. 2010Daikin Industries, Ltd.Liquid fluoropolymer composition and process for producing crosslinked fluorochemical
US78470353 avr. 20067 déc. 20103M Innovative Properties CompanyPolymer electrolyte with aromatic sulfone crosslinking
US78508718 juin 200714 déc. 2010Air Products and Chemicals, Inc.Resistivity stable electrically conductive films formed from polythiophenes
US78605447 mars 200728 déc. 2010Abbott Diabetes Care Inc.Analyte monitoring device and methods of use
US786766921 oct. 200411 janv. 2011Giner Electrochemical Systems, LLCSolid polymer electrolyte composite membrane comprising laser micromachined porous support
US78698536 août 201011 janv. 2011Abbott Diabetes Care Inc.Analyte monitoring device and methods of use
US78856996 août 20108 févr. 2011Abbott Diabetes Care Inc.Analyte monitoring device and methods of use
US789311822 mars 201022 févr. 2011E. I. du Pont de Nemours and CompanyCompositions containing particles of highly fluorinated ion exchange polymer
US78976829 nov. 20071 mars 2011E. I. du Pont de Nemours and CompanyAqueous polymerization of fluorinated monomers using polymerization agent comprising fluoropolyether acid or salt and hydrocarbon surfactant
US791023627 avr. 200722 mars 2011Asahi Glass Company, LimitedElectrolyte material, electrolyte membrane and membrane-electrolyte assembly for polymer electrolyte fuel cells
US79111345 juin 200722 mars 2011E. I. du Pont de Nemours and CompanyProcess for forming an organic light-emitting diode and devices made by the process
US79209077 juin 20075 avr. 2011Abbott Diabetes Care Inc.Analyte monitoring system and method
US79323339 nov. 200726 avr. 2011E.I. du Pont de Nemours and CompanyAqueous polymerization of fluorinated monomer using polymerization agent comprising high molecular weight fluoropolyether acid or salt and fluoropolyether acid or salt surfactant
US794326727 déc. 200617 mai 2011Solvay Solexis S.P.A.Assemblies for electrochemical devices
US794740529 sept. 200524 mai 2011Giner Electrochemical Systems, LLCSolid polymer electrolyte composite membrane comprising porous ceramic support
US797298816 janv. 20085 juil. 2011E. I. du Pont de Nemours and CompanyElectrocatalysts and processes for producing
US797309113 déc. 20075 juil. 2011E. I. du Pont de Nemours and CompanyProcess for producing re-dispersable particles of highly fluorinated polymer
US797677822 juin 200512 juil. 2011Abbott Diabetes Care Inc.Blood glucose tracking apparatus
US797742613 nov. 200812 juil. 2011E. I. du Pont de Nemours and CompanyFluoroalkyl ether sulfonate surfactants
US79774389 nov. 200712 juil. 2011E. I. du Pont de Nemours and CompanyAqueous polymerization of fluorinated monomers using polymerization agent comprising fluoropolyether acid or salt and siloxane surfactant
US79823715 mars 201019 juil. 2011Indian Institute of SciencePolymer metal composite membranes
US798951313 déc. 20072 août 2011E.I. du Pont de Nemours and CompanyProcess for producing dispersions of highly fluorinated polymers
US798956813 nov. 20082 août 2011E.I. du Pont de Nemours and CompanyFluorosulfonates
US801766026 févr. 200813 sept. 2011E.I. du Pont de Nemours and CompanyProcess for dissolution of highly fluorinated ion-exchange polymers
US803968117 août 200518 oct. 2011E. I. du Pont de Nemours and CompanyFunctionalized carbon materials
US804860421 oct. 20101 nov. 2011E.I.du Pont de Nemours and CompanyHydrofluoroalkanesulfonic acids and salts from fluorovinyl ethers
US805770829 juin 200715 nov. 2011E. I. du Pont de Nemours and CompanyStabilized compositions of conductive polymers and partially fluorinated acid polymers
US805831918 mai 200715 nov. 2011E.I. du Pont de Nemours and CompanyProcess to prepare fluoropolymer dispersions and membranes
US805837618 déc. 200915 nov. 2011E. I. du Pont de Nemours and CompanyFluoropolymer produced by aqueous polymerization using dispersed particulate of fluorinated lonomer produced in situ
US806255320 déc. 200722 nov. 2011E. I. du Pont de Nemours and CompanyCompositions of polyaniline made with perfuoropolymeric acid which are heat-enhanced and electronic devices made therewith
US807125429 déc. 20086 déc. 2011E. I. du Pont de Nemours and CompanyCrosslinkable fluoropolymer, crosslinked fluoropolymers and crosslinked fluoropolymer membranes
US807170221 juin 20066 déc. 2011Gore Enterprise Holdings, Inc.Low equivalent weight ionomer
US81426869 déc. 200927 mars 2012E.I. du Pont de Nemours and CompanyElectrically conductive polymer compositions
US814337131 oct. 200827 mars 2012E I du Pont de Nemours and CompanyPreparation of polytrimethylene ether glycol or copolymers thereof
US81477191 juin 20073 avr. 2012E I du Pont de Nemours and CompanyConductive polymer compositions
US81477219 déc. 20093 avr. 2012E.I. du Pont de Nemours and CompanyElectrically conductive polymer compositions
US814796213 avr. 20043 avr. 2012E. I. du Pont de Nemours and CompanyConductive polymer composites
US814849131 oct. 20083 avr. 2012E I du Pont de Nemours and CompanyPreparation of polytrimthylene ether glycol or copolymers thereof
US815302920 déc. 200710 avr. 2012E.I. du Pont de Nemours and CompanyLaser (230NM) ablatable compositions of electrically conducting polymers made with a perfluoropolymeric acid applications thereof
US815373818 déc. 200910 avr. 2012E I du Pont de Nemours and CompanyFluoropolymer produced by aqueous polymerization using dispersed particulate of fluorinated ionomer
US816282930 mars 200924 avr. 2012Abbott Diabetes Care Inc.Analyte monitoring device and methods of use
US817304710 mars 20118 mai 2012E I du Pont de Nemours and CompanyElectrically conductive polymer compositions
US81732709 janv. 20078 mai 2012Samsung Mobile Display Co., Ltd.Conducting polymer composition and organic optoelectronic device employing the same
US81756739 nov. 20098 mai 2012Abbott Diabetes Care Inc.Analyte monitoring device and methods of use
US817771621 déc. 200915 mai 2012Abbott Diabetes Care Inc.Analyte monitoring device and methods of use
US81833199 oct. 200822 mai 2012Air Products and Chemicals, Inc.Film forming additive formulations of conductive polymers
US821668031 janv. 200710 juil. 2012E I du Pont de Nemours and CompanyTransparent composite conductors having high work function
US821668515 mai 200910 juil. 2012E I du Pont de Nemours and CompanyBuffer bilayers for electronic devices
US822441310 oct. 200817 juil. 2012Abbott Diabetes Care Inc.Analyte monitoring device and methods of use
US822655518 mars 200924 juil. 2012Abbott Diabetes Care Inc.Analyte monitoring device and methods of use
US822655728 déc. 200924 juil. 2012Abbott Diabetes Care Inc.Analyte monitoring device and methods of use
US822655827 sept. 201024 juil. 2012Abbott Diabetes Care Inc.Analyte monitoring device and methods of use
US823153230 avr. 200731 juil. 2012Abbott Diabetes Care Inc.Analyte monitoring device and methods of use
US823589621 déc. 20097 août 2012Abbott Diabetes Care Inc.Analyte monitoring device and methods of use
US823624212 févr. 20107 août 2012Abbott Diabetes Care Inc.Blood glucose tracking apparatus and methods
US824152615 mai 200814 août 2012E I du Pont de Nemours and CompanyAqueous dispersions of electrically conducting polymers containing high boiling solvent and additives
USRE2953428 juin 19767 févr. 1978E. I. Du Pont de Nemours and CompanyPurification of perfluorosulfonyl fluoride perfluorovinyl ethers by thermal decomposition of unstable isomers
USRE3219927 févr. 19858 juil. 1986E. I. Du Pont de Nemours and CompanyTough, stable tetrafluoroethylene-fluoroalkyl perfluorovinyl ether copolymers